CourseManagementService Impl notes

CourseSets play prominently in assumptions written into the CMS API (comments, at least)

CourseManagementService.isEmpty(String courseSetEid) for example assumes that the String param is a eid for a CourseSet and the OOTB hibernate implementation runs this HQL:

from CourseSetCmImpl as cs where cs.eid=:eid and
        	(size(cs.canonicalCourses) > 0 or size(cs.courseOfferings) > 0)

We have Meeting and Section implemented and mapped now.